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    Statistics: Scatterplot and Trendline

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    You are in charge of your company's complaint department. You want to see if the complaints are rising or falling, so you plot the number of complaints over the last 50 days that the company has been open for business.

    1. Plot out the data using a scatterplot. What does this tell you?

    2. Calculate a regression equation for the data. Is this significant?

    3. Using your equation, predict the number of complaints for days 60 and 360. Which is the more accurate prediction? Why?

    [See the attached questions file.]

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    Solution Summary

    Neat and step-by-step solutions are provided. A scatterplot is provided, the regression equation is found and the number of complaints are predicted. The regression models restricted domain is discussed.